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Does pregnancy cause back pain?

Pregnancy can lead to back pain for several reasons. The extra weight in the front of the body shifts the center of gravity, strains the back muscles, and causes posture changes. Hormonal changes also loosen ligaments and joints to prepare for delivery. These factors combine to make back pain a common complaint during pregnancy, especially in the later stages.

What causes back pain during pregnancy?

There are several potential causes of back pain during pregnancy:

Shifting center of gravity

As the belly grows, a pregnant woman’s center of gravity shifts forward. This forces an adjustment in posture that strains the back muscles. To compensate, a pregnant woman often arches her back, which can lead to muscle spasms and cause lower back pain. The growing belly also puts extra weight on the spine and pelvis.


The hormones estrogen and relaxin loosen ligaments and joints in preparation for delivery. This can exaggerate the effects of the shifted center of gravity. The loosened ligaments allow the pelvis to shift and can cause inflammation and pain.

Posture changes

As the belly expands, a pregnant woman adapts her posture. Often, she leans back to counterbalance the weight in front. This shifts the curve of the spine and strains the back. Postural habits like slouching or bending can aggravate back muscles.

Stress on the spine

The added weight on the spine causes extra pressure on the disks, joints, and nerves. This leads to inflammation, muscle spasms, pinched nerves, and pain.

Weak abdominal muscles

During pregnancy, the abdominal muscles stretch and may lose tone. Weak core muscles transfer extra strain to the back and pelvis, which can result in pain.

What trimester does back pain occur?

Back pain typically starts during the second trimester, around week 18 to week 24. As the belly expands rapidly during this time, weight increases, posture changes, abdominal muscles stretch, and hormones loosen ligaments. These factors come together to make the second trimester the most common time for back pain to begin.

Many women find that back pain worsens during the third trimester, from weeks 28 to 40. At this stage, the baby is largest, the belly is heaviest, and the effects of loosened ligaments and posture strain take their toll. Back pain can be most severe in the final weeks before delivery.

Some women experience back pain in the first trimester. While less common, increased hormones, stress, and changes in blood flow can contribute to mild back pain early in pregnancy. Morning sickness and fatigue often cause mothers to slouch during the first trimester, putting extra strain on back muscles.

What areas of the back are affected?

The most common region for pregnancy-related back pain is the lower back, or lumbar region. This area bears the brunt of the baby’s weight and the shifting center of gravity. Increased curvature of the lower spine, weakening of the core muscles, and loosening of the sacroiliac joint all contribute to lower back strain.

Between 50-80% of pregnant women experience lower back pain at some point. Pain can range from mild discomfort to severe debilitating pain.

The upper and mid back are less commonly affected, but some women experience pain between the shoulder blades or in the thoracic spine region. Neck pain may also occur as women adjust their posture to accommodate the pregnant belly.

Is back pain normal during pregnancy?

Yes, back pain is very common and considered normal in pregnancy. Between 50-70% of pregnant women experience back pain. This high incidence is due to the physical changes and stresses on the body related to carrying a baby for nine months.

While common, severe or persistent back pain should be addressed with a healthcare provider. Most cases of pregnancy-related back pain resolve or improve quickly after delivery. Back pain that does not respond to self-care or becomes worse may indicate a problem requiring medical attention.

Can back pain be a sign of early pregnancy?

Back pain is not a definitive or reliable sign of early pregnancy. Lower back pain in the first trimester has several possible causes unrelated to pregnancy:

– Muscle strain
– Poor posture
– Stress
– Premenstrual syndrome
– Urinary tract infection
– Kidney stones

However, some women do notice mild back pain in the first weeks after conception. Shifting hormones, changes in blood flow, stress, and fatigue can contribute to back discomfort early on.

Other signs and symptoms are more definitive indicators of early pregnancy than back pain alone, such as:

– Missed menstrual period
– Nausea
– Breast tenderness
– Fatigue
– Frequent urination

A pregnancy test is the only way to confirm pregnancy. If early back pain accompanies other pregnancy symptoms, testing is warranted.

When should a pregnant woman call a doctor about back pain?

Most back pain during pregnancy resolves on its own or with self-care. However, a pregnant woman should contact her healthcare provider right away if she experiences:

– Acute, severe back pain that comes on suddenly
– Back pain with vaginal bleeding or cramping
– Back pain with fever, chills, nausea or vomiting
– Loss of bladder or bowel control
– Weakness, numbness or tingling in the legs

These symptoms can indicate a more serious problem requiring medical care, such as kidney infection, preterm labor, or blood clots. It’s important not to ignore or try to “tough out” severe back pain in pregnancy.

For persistent but manageable back pain, a visit with a women’s health physical therapist or chiropractor may provide relief. Most cases of pregnancy-related back pain resolve quickly after delivery.

How can back pain be relieved during pregnancy?

The following self-care tips may help relieve back pain during pregnancy:


Low-impact activity like walking, swimming, or yoga helps stretch muscles and improves circulation. Strengthening exercises for the core and pelvic floor also provide back support.

Proper posture

Standing and sitting tall with shoulders back reduces strain. Avoid slouching and bending forward from the hips.

Supportive footwear

Wear shoes with good arch support. Avoid high heels which shift posture.

Heat or ice

Apply heat packs or warm compresses to soothe muscles. Some women get pain relief from cold packs or ice massage. Do not apply extreme cold or heat directly to bare skin.


Massaging the lower back gently with lotion or oil can help relax tight muscles. Avoid deep tissue massage which could trigger contractions.


Gentle stretches for the lower back, hips, and hamstrings can reduce muscle tension. Yoga poses like child’s pose are ideal.

Maternity support belt

Wearing a maternity belt or support garment may improve posture and alignment.


Get adequate rest by sleeping on your side with a pillow between your knees for support. Avoid lying flat on your back, especially in late pregnancy.


Acetaminophen (Tylenol) is considered safe for minor back pain during pregnancy. Check with your doctor before taking any medication.

Are back rubs safe during pregnancy?

Gentle back rubs are generally safe during pregnancy and can help provide relief from muscular back pain. However, certain precautions are recommended:

– Avoid deep tissue massage, which may trigger contractions. Stick to light, soothing strokes.

– Use lotion or oils to allow smooth gliding over the skin rather than deep pressure.

– Focus on muscles rather than joints and ligaments, which are looser.

– Skip trigger points like ankles and wrists which can stimulate contractions.

– Avoid positions that put pressure on the belly or require lying flat on the back late in pregnancy.

– Tell your massage therapist you are pregnant and check if they are trained in prenatal massage.

– Stay well hydrated before and after a massage which can trigger Braxton Hicks contractions.

– Avoid massage in high-risk pregnancies prone to preterm labor.

With proper precautions, pregnancy massage performed by a trained professional can safely relax tense muscles and provide back pain relief.

Is chiropractic care safe during pregnancy?

Chiropractic care is considered a safe, effective treatment for back pain during pregnancy when performed by a practitioner specialized in prenatal and pregnancy care. Benefits include:

– Gentle spinal adjustments to relieve pain and nerve irritation

– Advice on proper posture and body mechanics to reduce strain

– Exercises and stretches to strengthen muscles and increase flexibility

– Soft tissue massage and mobilization

– Use of pregnancy pillows and supports

Chiropractors trained in Webster Technique can perform adjustments and realignment of the pelvis to encourage optimal fetal positioning.

However, certain safety precautions should be followed:

– Avoid uncontrolled sudden movements or forceful high-velocity manipulations that could harm the pregnancy.

– Lie only on your side rather than on your back during adjustments later in pregnancy.

– Make sure your chiropractor has expertise in caring for pregnant women.

When performed by a prenatal specialist using modified techniques, chiropractic offers a safe drug-free approach to relieving back pain during pregnancy. Communicate any concerns with your chiropractor.

Is pregnancy back pain preventable?

It’s difficult to prevent back pain entirely during pregnancy, given all the physical changes and stresses to the body. However, certain steps can help minimize unnecessary strain and discomfort:

– Maintain good posture and body alignment when sitting, standing, sleeping, lifting, and exercising. Avoid slouching or arching.

– Wear supportive shoes with low heels.

– Sleep on your side with a pillow between the knees or use pregnancy pillows for support.

– Avoid heavy lifting and high-impact exercise.

– Perform gentle strengthening and flexibility exercises for your core, back, and hips.

– Use proper body mechanics when bending down.

– Avoid long periods of standing or sitting. Take breaks to move and stretch.

– Consider a maternity support belt to reduce strain.

– Schedule regular massages or chiropractic adjustments for pain relief before it becomes severe.

While back pain is extremely common in pregnancy, taking proactive steps to support the back and maintain strength may reduce unnecessary strain. But some discomfort is often inevitable given the physical changes involved.

When does postpartum back pain go away?

Many women find that pregnancy-related back pain resolves quickly after giving birth. However, some aching and stiffness can linger for several months postpartum as the body recovers. Here’s the typical time frame:

– Immediately after delivery – Back pain usually improves right away once the belly shrinks and weight is removed. However, delivery itself places strain on the back which could cause short-term soreness.

– First 6 weeks – Lingering musculoskeletal changes like loose ligaments and weak core muscles can lead to continued mild back pain and discomfort. Stay active but avoid sudden strain.

– 6 weeks to 6 months – Discomfort slowly subsides over the next few months as abdominal and back muscles regain strength and tone. Core strengthening exercises help stabilize the spine and pelvis.

– Beyond 6 months – If back pain persists beyond 6 months postpartum, see your healthcare provider. Underlying causes like muscle imbalance or spinal joint dysfunction may need to be addressed.

– After additional pregnancies – Back pain may recur or become chronic if pregnancies are close together before the body fully recovers strength and stability.

With time, physical therapy, and active self-care, most postpartum back pain resolves within 6 months. Recurring or worsening pain should be evaluated to treat any underlying dysfunction.


Back pain is an extremely common complaint during the second and third trimesters of pregnancy. Weight gain, shifting center of gravity, hormones, posture changes, and stress on the spine all contribute to discomfort and strain. Though often normal, severe or persistent back pain should be evaluated. Gentle stretching, exercise, massage, and chiropractic care can provide relief without medication. While challenging to prevent entirely, steps like maintaining strength, support, and proper mechanics can minimize unnecessary strain. Most pregnancy-related back pain resolves quickly after delivery. However, some women contend with discomfort for several months postpartum as the body recovers. With time and targeted treatment, the back is typically able to return to full function after pregnancy.